Tilting table



Feb. 10, 1931. s ALLISON 1,792,209

TILTING TABLE Filed Feb. 24, 1930 III:

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- Patented Feb. 10, 1931 "UNITED STATES:

s, ALLISON, on INnIANAronrs INnrAnA," Ass'reiton weft; ALLISON oom- HARRY PANY, OF INDIANAPOLIS, INDIANA, A-GORPORATION INDIANA.

,rrnrme TABLE Original application filed April 20, 1927, Serial No. 185,132. Divided and this application filed February 24, 1930. Serial No. 430,787.

5 in a vertical plane about a base at any angle of horizontal rotation therearoun-d. a An important object of the invention resides in the meansfor holding the table top at selected positions as it may be tilted. An:

- 7 10 other object resides in the provision of foot operable means for releasing the holding means so that the operators hands will not have to be employed in operating the mec'h anism.

These and other, objects will become apparent in the following description of the invention as illustrated by the accompanying drawing, in which. d

Fig. 1, is a fragmentary side elevation of a table embodying my,invention; and.

Fig. 2, a partial transverse section through the table on the line 2-2 in Fig. 1.

Like characters of reference indicate like parts throughout the several views in the drawing.

to within and across a bore in which a bolt" 18 slides. Normally, the bolt 18 is carried within the bore to pass through one of the notches 17 in the sector 16 so that the sectormay not move.

The bolt 18 is provided with a notch 19 transversely across its upper side at a distance from the inner end which passes through the sector notch. The notch 19 is of sufficient width and depth that, when the bolt 18 is moved longitudinally, the notch may be brought within the path of the sector 16 to 59 permit the sector to move thereover. The

To the under side of the table 10, I secure bolt 18 is carried to that position by means of pressing on the foot pedal 20 at the lower end of the lever 21 which has its upper end pivoted to the arm 13 and which also pivotally engages the outer end of the bolt 18.

tion by thei'spring 22 compressively carried within thebore in which the bolt slides bei v The bolt'18 is returned to its normal posiv i tween the end of the bolt and the screw 23 which screwethreadedly engages within the end of the bore. The head 15 is carried on the plunger 24 revolvably in and vertically extenv sible fromthe base 25 to permit horizontal rotation of the table 10 as well as vertical elevation through operation by the foot pedal 26. The detailedconstruction of the interconnecting mechanism between the pedal 26 and the plunger 24, is not here shown and does not form a part of my invention, being well known to those versed in the art.

I claim:

1. The combination of a head having a slot across its upper side, an arm extending upwardly from the head, a table pivotally attached to the arm to rock in a vertical plane, a sector fixed to the table and entering said slot, said sector having notches'transversely across its periphery, a bolt slidingly carriedv by the head transversely across said slot andparallel to said sector notches, said bolt having a top side notch adapted to register with said head slot at a certain position of the bolt to permit the sector to pass therethrough to be rocked, means for normally holding the bolt in position to engage a notch of the sector, and manually operated means for moving the bolt out of said engagement.

2. The combination ofa head having a pair of upwardly extending arms and a slot between the arms, a table, a bracket attached to the under side of the table and pivotally secured between the farms of said pair, a sector fixed to the bracket and entering the slot between the arms having notches across its pcriphery presented in the slot, a bolt slidingly carried by the head and passing through the slot and through one of the notches. in the sector, said bolt having a top side notch to register with the slot at one position of the bolt to permit the sector to be rocked, a spring to move the bolt longitudinally to a normal locking position, a foot lever'pivotecl by its upper end to one of said arms and at'a point removed therefrom to the bolt. 7

In testimony whereof I affix my signature.

. HARRY s ALLISON. 

